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简算 6/11x7/8-5/12÷11/6
人气:452 ℃ 时间:2020-04-11 17:02:03
解答
6/11x7/8-5/12÷11/6
=6/11x7/8-5/12x6/11
=6/11x(7/8-5/12)
=6/11x 11/24
=1/4
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